A freezer is a household appliance designed to store food and other items at very low temperatures, typically below 32°F (0°C). It works by removing heat from the interior, allowing food to be preserved for longer periods. Freezers can be found in various forms, including upright models and chest freezers, and are commonly used to keep meat, vegetables, and ice cream fresh. Freezers are essential for reducing food waste and saving money by allowing people to buy in bulk and store items for later use. They often come with features like adjustable shelves and temperature controls, making it easier to organize and maintain the quality of stored items.